Crawl Space Waterproofing in Laplace, Louisiana
2 of the 23 crawl space companies serving Laplace, Louisiana specifically list waterproofing among their services, led by Southeast Waterproofing (5.0★, 1 reviews). Local waterproofing typically runs $1,500–$5,000.
Get drainage and sump pump quotes from Laplace pros who handle wet crawl spaces. 2 local pros offer waterproofing services. For full service comparisons, see all crawl space contractors in Laplace or encapsulation pros in Laplace.
Laplace Waterproofing Cost — Southeast — Heavy Seasonal Rain
Annual rainfall: 45–65 inches, concentrated in summer thunderstorms.
Cost varies with crawl space perimeter, sump pump capacity, discharge length, and exterior grading work. Get 2–3 quotes for an exact number.
Why Waterproofing Matters in Laplace
In the Southeast, waterproofing is rarely just about keeping rain out — it is about managing groundwater that rises seasonally and storm bursts that overwhelm yard drainage in minutes. A sealed crawl space without drainage will flood from below during heavy storms because hydrostatic pressure pushes groundwater up through the substrate. Interior perimeter drains and a sump pump are the standard fix.
What a Laplace Waterproofing System Should Include
- ✓Interior perimeter drain channel along footings (1.5–2 inch radius)
- ✓Sump pit and pump (1/3 to 1/2 HP, with battery backup)
- ✓Discharge line routed at least 10 feet from foundation
- ✓Vapor barrier (12–20 mil) over the drain system
- ✓Exterior French drain if the lot grades toward the home
- ✓Hurricane-rated check valve on discharge line
Interior vs Exterior Drainage in Louisiana
Recommendation
Interior perimeter drains are the primary line of defense in the Southeast. Exterior French drains help but are not sufficient alone — Southeast soil saturation defeats them during heavy storms.
Sump Pump Sizing
A 1/2 HP sump pump with battery backup is standard in this region. Power outages are common during the storms that create the most water — a battery backup is non-negotiable. Expect to replace pumps every 7–10 years.
What to Watch For in Louisiana
- !Reject any waterproofing quote that does not include a sump pump in the Southeast
- !Confirm the discharge line cannot back-flow during a flooded yard scenario (check valve required)
- !Pair with encapsulation — sealed crawl space + drainage is the long-term Southeast standard
Waterproofing Contractors in Laplace
Southeast Waterproofing
1028 Justin Rd, Metairie, LA 70001, USA
1 reviews
Volker Waterproofing LLC
4229 Avron Blvd, Metairie, LA 70006, USA
1 reviews
RM LaPlace Insulation, LLC
2735 Virginia St Suite D, Kenner, LA 70062, USA
4 reviews
Sunlight Contractors
2323 Bainbridge St Ste 110, Kenner, LA 70062, USA
167 reviews
Power Pro Remediation
21468 Florence Rd, Mandeville, LA 70471, USA
121 reviews
Mold Man Solutions
11930 Industriplex Blvd STE 10, Baton Rouge, LA 70809, USA
47 reviews
Water Removal Pros - New Orleans Water Damage Cleanup & Drying
105 Jarrell Dr, Belle Chasse, LA 70037, USA
37 reviews
PuroClean Emergency Restoration
74030 LA-1077, Covington, LA 70435, USA
28 reviews
Cable Lock Foundation Repair
429 W Airline Hwy B, Laplace, LA 70068, USA
2 reviews
Frontline Concrete Solutions
517 Time Saver Ave Suite A, Harahan, LA 70123, USA
20 reviews
Intergrated Management Solutions LLC
1317 W Airline Hwy Ste I, Laplace, LA 70068, USA
2 reviews
Sunlight Contractors
1070 W Causeway Approach, Mandeville, LA 70471, USA
49 reviews
Shreveport Foundation Repair Specialists
6114 Fairfield Ave, Shreveport, LA 71106, USA
2 reviews
Louisiana Roof Crafters
618 Belle Terre Blvd, Laplace, LA 70068, USA
23 reviews
Koala Insulation of Baton Rouge
7987 Pecue Ln Suite 1-a, Baton Rouge, LA 70809, USA
202 reviews
A-1 House Leveling
3900 Canal St, New Orleans, LA 70119, USA
160 reviews
MidSouth Crawlspace Solutions
2404 US 49, Florence, MS 39073, USA
834 reviews
AdvantaClean of Metro New Orleans
1515 S Salcedo St Suite 130, New Orleans, LA 70125, USA
111 reviews
PuroClean Certified Restoration Specialist
2701 Airline Dr, Metairie, LA 70001, USA
50 reviews
Reve Inc
325 Belle Terre Blvd # B, Laplace, LA 70068, USA
8 reviews
Damp Solving Water & Mold
425 W Airline Hwy Ste L #1022, Laplace, LA 70068, USA
0 reviews
Waterproofing FAQs — Laplace, Louisiana
Which companies offer crawl space waterproofing in Laplace?
Southeast Waterproofing (5.0★), Volker Waterproofing LLC (5.0★) list waterproofing in Laplace. 2 of 23 local crawl space companies tag this service directly.
How many crawl space contractors serve Laplace?
23 crawl space companies are listed for Laplace; Sunlight Contractors is the highest-rated at 5.0★ (167 reviews). Pros in nearby New Orleans and Baton Rouge also cover the area.
How much does crawl space waterproofing cost in Laplace, Louisiana?
Crawl space waterproofing in Laplace, Louisiana typically costs $1,500–$5,000 for a complete interior drainage system with sump pump. Southeast — Heavy Seasonal Rain pricing reflects local labor rates and the specific drainage scope each climate demands.
Do I need an interior or exterior drainage system in Laplace?
Interior perimeter drains are the primary line of defense in the Southeast. Exterior French drains help but are not sufficient alone — Southeast soil saturation defeats them during heavy storms.
What size sump pump do I need in Laplace?
A 1/2 HP sump pump with battery backup is standard in this region. Power outages are common during the storms that create the most water — a battery backup is non-negotiable. Expect to replace pumps every 7–10 years.
Why is exterior grading important for waterproofing in Louisiana?
Verify a 6-inch fall over the first 10 feet from foundation. Many Southeast homes have settled grade that now slopes toward the foundation — re-grading before drainage installation prevents 30–50% of water issues.
When should I schedule waterproofing in Laplace?
November through March — outside hurricane season and dry enough for excavation. Avoid May–October when storm bursts make crawl space access dangerous.
Expected ROI
Avoiding one major flood event ($8K–$25K in damage to floors, drywall, and HVAC) typically pays for the entire system within 2–5 years. Insurance: many Southeast carriers now offer 5–15% premium discounts for documented waterproofing systems.
Best Season to Schedule
November through March — outside hurricane season and dry enough for excavation. Avoid May–October when storm bursts make crawl space access dangerous.
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Also Serving Laplace
Waterproofing Guides
Southeast — Heavy Seasonal Rain
Annual rainfall: 45–65 inches, concentrated in summer thunderstorms